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Full text of "The manufacture and properties of iron and steel"

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4:92                                      THE IRON INDUSTRY.
put in operation near Buffalo. This includes all necessary blast furnaces, a Bessemer plant of four 10-ton vessels, two rail mills, a structural mill and a merchant mill, and will include open-hearth furnaces and plate mills. When completed it will be among the largest plants of the world. The most radical departure in its construction is in an extensive plant of gas engines, both to blow the furnaces and to furnish electric power. SEC. XXIIk.—Colorado:
The only great iron district west of the Mississippi Eiver is at Pueblo, Colo., but its tributary mines cover an area which would overshadow a European empire. The Colorado Fuel and Iron Company owns over 30 mines in the State and 5 mines in New Mexico. The coke comes from southern Colorado, about 90 miles from Pueblo, the coal containing 30 per cent, of volatile matter, and occurring in beds about 6 feet thick. It is washed and gives a hard coke containing 16 per cent, of ash. The steam and gas coals are brought 50 miles. In Colorado can be found coals of every description from anthracite to lignite, the beds having been exposed to severe geologic disturbances and volcanic intrusions.
The iron ore comes from three sections. At Sunrise, Wyo., 350 miles from Pueblo, there is an enormous deposit of red hematite running as- high as 62 per cent, in iron, which can be mined with a steam shovel. At Fierro, N". M., 600 miles from Pueblo, is a large deposit of hard magnetic ore running up to 61 per cent, in iron. At Orient, Colo., 125 miles from the works, is a deposit of easily reducible limonite containing 50 per cent, of metallic iron. All of these ores are within the Bessemer limit of phosphorus. At Leadville, 100 miles away, there is a deposit running 30 per cent, in manganese, and in eastern Utah, about 400 miles distant, one with 50 per cent, of manganese. The spiegel for the steel plant is smelted at the Minnequa plant at Pueblo.
This district is protected by a great distance, and a bight transportation charge, from the competition of Eastern works, and has an enormous area as its natural market. The country is sparsely settled, but with the constant westward trend of population, the wants of railroads and other users have increased, and there is a demand for a large works.
The plant, when completed, will have five blast furnaces, a Bessemer plant with two 15-ton converters, an open-hearth plant with